Rosieria is an extinct genus of dwarf cynodonts from de Late Triassic of France. It bewongs to de famiwy Traversodontidae, a herbivorous group known mainwy from Gondwana. The type species R. dewsatei was named in 1997 on de basis of a few isowated postcanine teef found in Saint-Nicowas-de-Port in nordeastern France. These teef were found awongside de teef of many oder cynodonts, incwuding dose of Hahnia, Gaumia, and Maubeugia. The smaww size of de teef in Saint-Nicowas-de-Port suggest R. dewsatei and oder species were dwarf cynodonts. Most teef in de wocawity bewong to insectivores wike dromaderiids, whiwe dose of R. dewsatei and oder herbivorous cynodonts are very rare.[1]